JP2008224337A - Hemocyte analyzer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hemocyte analyzer capable of providing clinical inspection support information, based on a hemoglobin amount equivalent value in a reticulocyte, and a difference between the hemoglobin amount equivalent value in the reticulocyte and a hemoglobin amount equivalent value in a maturation erythrocyte. <P>SOLUTION: This hemocyte analyzer classifies the erythrocyte and the reticulocyte out of cells contained in a blood sample, acquires scattered light information about the erythrocyte, and scattered light information about reticulocyte, acquires respectively the hemoglobin amount equivalent value in the erythrocyte from the scattered light information about the erythrocyte, the hemoglobin amount equivalent value in the reticulocyte from the scattered light information about reticulocyte, and acquires the clinical inspection support information, based on the hemoglobin amount equivalent value in the reticulocyte, and the difference between the hemoglobin amount equivalent value in the reticulocyte and the hemoglobin amount equivalent value in the erythrocyte. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a blood cell analyzer and a blood cell analysis method for analyzing blood cells in a blood sample.

  Anemia includes iron deficiency anemia (IDA), anemia of chronic disorder (ACD), megaloblastic anemia (MA) due to vitamin 12 and folic acid deficiency, etc. Is mentioned. For example, administration of iron is very effective in the treatment of iron deficiency anemia, but not in the treatment of ACD. Therefore, in the treatment of anemia, it is important to know the cause of anemia.

  Tests such as serum iron, serum ferritin, and soluble transferrin receptor (sTfR) can be used to understand changes in the amount of iron in the blood (iron dynamics), but these tests are sensitive and expensive. It is said that there is a problem.

  In addition, administration of genetically modified human erythropoietin (rHuEPO) has become widespread as a treatment method for renal anemia. Renal anemia is a disease caused by decreased production and secretion of erythropoietin in the kidney. In the treatment of renal anemia, improvement may not be observed despite the administration of rHuEPO. The most common cause is that rHuEPO administration results in a functional iron deficiency. In this case, it is necessary to administer iron in addition to rHuEPO.

  In addition, deficiency of vitamin 12 and folic acid inhibits nucleic acid synthesis. Erythrocytes are most susceptible to the effects of nucleic acid synthesis, leading to megaloblastic anemia.

  As described above, since anemia occurs for various causes, it is important to determine the effect of treatment at an early stage in the treatment. Therefore, there are methods for examining the appearance and properties of reticulocytes. Since reticulocytes are erythrocytes before maturation, they can be an indicator of the future status of hemoglobin production, and thus are promising in the treatment of anemia.

  For example, Patent Document 1 calculates an average forward scattered light intensity (RET-Y) and an average forward scattered light intensity (RBC-Y) of mature red blood cells for a group of reticulocytes identified on a two-dimensional distribution map, An average hemoglobin amount (RET-He) contained in reticulocytes is calculated based on RET-Y, an average hemoglobin amount (RBC-He) contained in mature erythrocytes is calculated based on RBC-Y, and RET-He and It is disclosed to calculate the difference (Delta-He) of RBC-He.

JP 2005-257450 A

  However, Patent Document 1 describes parameters such as the average amount of hemoglobin in reticulocytes, the average amount of hemoglobin in mature erythrocytes, and the difference in the average amount of hemoglobin between reticulocytes and mature erythrocytes. There is no disclosure about the relationship between various parameters and clinical utility.

  An object of this invention is to provide the blood cell analyzer which can acquire clinically useful clinical test | inspection assistance information by analyzing the parameter mentioned above.

  The blood cell analyzer according to the first aspect of the present invention includes a detector that irradiates a blood sample with light and acquires optical information including at least scattered light information from each cell included in the blood sample, and acquired optical information. Cell classification means for classifying red blood cells and reticulocytes among the cells based on the above, scattered light information acquisition for acquiring red blood cell scattered light information that is scattered light information about red blood cells and reticulocyte scattered light information that is scattered light information about reticulocytes Means, obtaining the hemoglobin amount equivalent value in red blood cells from the red blood cell scattered light information, obtaining the hemoglobin amount equivalent value in reticulocytes from the reticulocyte scattered light information, the hemoglobin amount equivalent value in red blood cells and the hemoglobin amount equivalent value in red blood cells A hemoglobin amount equivalent value acquisition means for acquiring a difference (hemoglobin amount difference) from Comprising a support information obtaining means for obtaining information supporting clinical examination based on the hemoglobin amount difference.

  Further, the blood cell analysis method of the second aspect of the present invention includes a step of irradiating a blood sample with light to acquire optical information including at least scattered light information from each cell included in the blood sample, and the acquired optical A step of classifying red blood cells and reticulocytes among the cells based on information, a step of acquiring red blood cell scattered light information which is scattered light information about red blood cells and a reticulocyte scattered light information which is scattered light information about reticulocytes, red blood cell scattered light Obtaining the hemoglobin content equivalent value in the red blood cells from the information and obtaining the hemoglobin content equivalent value in the reticulocyte from the reticulocyte scattered light information, the difference between the hemoglobin content equivalent value in the red blood cell and the hemoglobin content equivalent value in the reticulocyte ( Step of obtaining a hemoglobin amount difference), and a reticulocyte hemoglobin equivalent value and a hemoglobin amount difference Acquiring information supporting clinical examination based consists.

  According to the present invention, it is possible to provide clinical test support information on the basis of the value corresponding to the amount of hemoglobin in reticulocytes and the difference between the value corresponding to the amount of hemoglobin in reticulocytes and the value corresponding to the amount of hemoglobin in mature erythrocytes. A blood cell analyzer useful for monitoring can be provided.

  A blood cell analyzer according to an embodiment of the present invention will be described.

  FIG. 1 shows an overall block diagram of a blood cell analyzer. The blood cell analyzer sucks blood as a test sample, measures the sucked blood, and performs data processing and analysis processing, and further analyzes and stores the data obtained by the measuring unit 2 And a data processing unit 3 having the function of The data processing unit 3 is configured by incorporating software for blood cell analysis into a commercially available personal computer having a display screen, a keyboard, a hard disk, and the like. The measurement unit 2 includes a detection unit 4 for detecting blood cells, an analog processing unit 5 that performs processing on a signal from the detection unit 4, and a micro that performs processing on a signal processed by the analog processing unit 5. A computer unit 6, a display / operation unit 7 for inputting settings and outputting results and the like, and an apparatus mechanism unit 8 for driving the mechanism and the like are provided. The device mechanism 8 includes a fluid mechanism 81 that drives fluid elements such as valves and pumps. In this embodiment, the measurement unit 2 and the data processing unit 3 are separate device configurations, but may be configured integrally.

  FIG. 2 is a block diagram showing the configuration of the main part of the fluid mechanism 81. The fluid mechanism 81 includes a sample suction nozzle 18, a sampling valve 12, and a plurality of reaction chambers 13 to 17. The blood sample stored in the sample container 11 is sucked from the sample suction nozzle 18 and introduced into the sampling valve 12. The blood sample introduced into the sampling valve 12 is quantitatively fractionated for each measurement item in the sampling 12 and is transferred to the reaction chambers 13 to 17 together with each reagent (diluent) supplied to the sampling valve 12 in a quantitative amount. The term “diluted solution” used here is meant to include a solution that does not have a hemolytic action or a liquid that has a hemolytic action. Further, depending on the item, a predetermined amount of staining solution is supplied to the reaction chamber and mixed in the reaction chamber to perform a staining reaction. In the reaction chambers 13, 14, 15, 16, and 17, the white blood cell 4 classification measurement sample, the nucleated red blood cell measurement sample, the reticulocyte measurement sample, the white blood cell and basophil measurement sample, the red blood cell and platelet measurement sample, respectively. Is produced. The prepared sample for measuring red blood cells and platelets is introduced into an electric resistance type detection unit 9 for particle measurement. The prepared samples for measurement of white blood cell 4 classification, nucleated red blood cells, reticulocytes, white blood cells, and basophils are sequentially introduced into the optical detection unit 4 and sequentially subjected to particle measurement. As for hemoglobin, a sample for measurement is transferred to the hemoglobin detection unit 10 together with a predetermined amount of diluent, a hemolytic agent is also supplied, and colorimetric measurement is performed by the detection unit 10. The hemoglobin measured by the detection unit 10 is the amount of hemoglobin contained in a predetermined volume of blood.

  In the embodiment of the present invention, information useful for clinical examination is obtained using a sample for reticulocyte measurement. As a reagent for reticulocyte measurement used for that purpose, Let Search II supplied from Sysmex Corporation can be preferably used. This reagent is a reagent kit product composed of a diluting solution and a staining solution. By mixing 4.5 microliters of blood with 900 microliters of diluting solution and 18 microliters of staining solution and reacting them, red blood cells, reticulocytes and platelets Are stained respectively.

  FIG. 3 is a perspective view of the optical detection unit 4 provided in the blood cell analyzer. The reticulocyte measurement sample prepared in the reaction chamber 15 is pushed out from a nozzle 36 provided in the flow cell 43 at a constant flow rate, surrounded by a sheath liquid from the periphery to form a sheath flow, and flows through the orifice portion 38 of the flow cell 43. The laser beam emitted from the laser diode 40 irradiates the orifice portion 38 of the flow cell 43 through the collimator lens 42. Forward scattered light emitted from blood cells passing through the laser beam irradiation region of the orifice portion 38 is incident on the photodiode 46 through the condensing lens 44 having a beam stopper and the pinhole plate 45. On the other hand, lateral light emitted from blood cells passing through the laser beam irradiation region of the orifice portion 38 is collected by the condenser lens 47. Side scattered light enters a photomultiplier tube (hereinafter referred to as photomultiplier) 49 via a dichroic mirror 48, and side fluorescence enters a photomultiplier 52 via a dichroic mirror 48, an optical filter 50, and a pinhole plate 51. Incident.

  The forward scattered light signal incident on the photodiode 46, the side scattered light signal incident on the photomultiplier 49, and the side fluorescent light signal incident on the photomultiplier 52 are photoelectrically converted and detected by the detection circuits 53, 54 and 55, respectively. Then, the microcomputer unit 6 performs various data processing.

  Signal detection, data analysis, and the like are similarly performed on other measurement samples other than the reticulocyte measurement sample.

  As shown in FIG. 1, the microcomputer unit 6 includes an A / D conversion unit 61 that sequentially converts an analog signal from the analog processing unit 5 into a digital signal, and the A / D converted signal is sent to the calculation unit 62. Accumulated distribution data (two-parameter distribution data serving as a basis for creating a scattergram and one parameter distribution data serving as a basis for creating a histogram) is created. Distribution data using the forward scattered light signal intensity and the side fluorescence signal intensity as parameters is created for the reticulocyte measurement sample in this embodiment.

  The microcomputer unit 6 includes a control unit 63 including a control processor and a memory for controlling the control processor, and a data analyzing unit 64 including an analysis processor and a memory for operating the analyzing processor. ing. The control unit 63 performs drive control of the apparatus mechanism unit 8 including a sampler (not shown) that automatically supplies a sample container, a fluid system for sample preparation and measurement, and other drive control. The data analysis unit 64 performs analysis processing such as clustering on each distribution data. The analysis result is sent to the external data processing unit 3 via the interface 65, and processing such as external output and storage of the measurement result is performed. Further, the microcomputer section 6 includes an interface section 66 interposed between the display / operation section 7 and an interface section 67 interposed between the apparatus mechanism section 8. The calculation unit 62, the control unit 63, and the interface units 66 and 67 are connected via a bus 68, and the control unit 63 and the data analysis unit 64 are connected via a bus 69. The display / operation unit 7 includes a start switch for an operator to give an instruction to start measurement, and a touch panel type liquid crystal for displaying the state of the apparatus, various setting values, and analysis results, and receiving input from the operator. And a display unit.

  FIG. 4 is a flowchart showing analysis processing performed by the data analysis unit 64.

  First, distribution data for the reticulocyte measurement sample generated in the calculation unit 62 is taken into the data analysis unit 64 via the buses 63 and 69 (step S1). Clustering is performed on the acquired distribution data, and each blood cell is classified (step S2).

  FIG. 5 is a two-dimensional distribution diagram (scattergram) obtained for the reticulocyte measurement sample. The vertical axis represents the forward scattered light intensity, and the horizontal axis represents the side fluorescence signal intensity. The population indicated by RBC is a population of mature red blood cells, the population indicated by RET is a population of reticulocytes, and the population indicated by PLT is a population of platelets. These groups are classified and counted into each group using a known clustering technique. In this embodiment, a mature RBC population RBC and a reticulocyte population RET are identified, respectively.

Returning to FIG. The average forward scattered light signal intensity (RBC-Y) of the specified population RBC of mature erythrocytes is calculated, and the average forward scattered light signal intensity (RET-Y) of the specified reticulocyte population RET is calculated (step S3). ). Using the conversion formula, from these calculated RBC-Y and RET-Y, a value (RBC-He) reflecting the average amount of hemoglobin contained in mature erythrocytes, and a value reflecting the average amount of hemoglobin contained in reticulocytes (RBC-He) RET−He) and the difference between them (Delta−He) are calculated (step S4). Specifically, these values can be calculated using the following conversion formula.
<Formula 1>
RET-He = A × exp (B × RET-Y)
(However, A = 5.8439, B = 0.0098)
<Formula 2>
RBC-He = C × exp (D × RBC-Y)
(However, C = 5.8439, D = 0.0098)
Further, the value (RBC-He) is subtracted from the calculated value (RET-He) to calculate a value (Delta-He) representing the difference between the two (step S5).

  Here, how to derive the above equation will be described.

  In Formula 2, a plurality of specimens are measured in advance with a blood cell analyzer, the forward scattered light intensity (RBC-Y) and MCH (average erythrocyte hemoglobin amount) of mature erythrocytes are obtained for each specimen, and the analysis results are obtained as RBC- It can be obtained by plotting on a graph with Y and MCH as axes and obtaining an expression showing the relationship between RBC-Y and MCH. MCH can be obtained by calculating the number of red blood cells calculated from the RBC / PLT detection unit 8 shown in FIG. 2 and the amount of hemoglobin calculated from the HGB detection unit 10 as in the past. Specifically, Equation 3 uses a value calculated by measuring 500 samples.

  For simplicity, Equation 1 used the same type of equation as Equation 2. However, by analyzing a plurality of specimens in advance, the average forward scattered light intensity (RET-Y) of reticulocytes and the amount of hemoglobin contained in reticulocytes And the analysis results are plotted on a two-dimensional distribution map and determined by obtaining an expression showing the relationship between RET-Y and the amount of hemoglobin contained in the reticulocyte from the distribution state of the two-dimensional distribution map. Good. The amount of hemoglobin contained in reticulocytes can be obtained using, for example, ADVIA 120 (manufactured by Bayer Diagnostics).

  Further, the method and means for obtaining a value reflecting the amount of hemoglobin contained in reticulocytes and mature erythrocytes are not limited to those described here, and other methods and means can be used. For example, it can be obtained by detecting and analyzing two forward scattered lights having different angles with respect to the optical axis, or by detecting and analyzing two forward scattered lights having different wavelengths.

  Returning to FIG.

  Next, state identification information (clinical test support information) useful for clinical examination is derived in correspondence with the combination of RET-He and Delta-He. As one method for this purpose, an area map using a correlation diagram with RET-He and Delta-He as parameters is used here (step S6).

  FIG. 6 shows an area map in which a correlation diagram using RET-He and Delta-He as parameters for each of two axes is divided into a plurality of areas. Region A1 indicates that both the RET-He value (28 to 36 pg) and the Delta-He value (0 to 5 pg) are almost normal regions. A region A7 indicates that any value is a region showing a value that is higher than the normal value, and a region A4 indicates that any value is a value indicating a value that is lower than the normal value. Identification codes A1 to A9 corresponding to state identification information (clinical test support information) are assigned to these areas. Information relating to this area map (values defining the range of each area and identification code for each area) is stored in the memory of the data analysis section 64 of the microcomputer section 6 here.

  The clinical meaning of each area is as follows.

  Region A1 is a region showing a normal hemoglobin synthesis state in normal pigment erythrocytes, region A2 is a region showing a normal hemoglobin synthesis state in hypochromic erythrocytes, and region A3 is a region showing a normal hemoglobin synthesis state in hyperchromic erythrocytes. Region A4 is a region showing a potential iron deficiency or functional iron deficiency state in acute infection or inflammatory reaction, and region A5 is a region showing iron deficiency or a functional iron deficiency state in chronic infection or inflammatory reaction Similarly to the region A5, the region A6 is a region showing an iron deficiency or a functional iron deficiency state in a chronic infection or an inflammatory reaction. Region A7 is a region showing an increased state of hemoglobin synthesis in positive pigmented erythrocytes, region 8 is a region showing an increased state of hemoglobin synthesis in hyperchromic erythrocytes, and a region showing an increased state of hemoglobin synthesis in extremely hyperchromic erythrocytes.

  Describes a specific process of adding and outputting clinical test support information useful for clinical tests using a region map divided in advance in a correlation diagram created by a combination of two values of RET-He and Delta-He To do. The processing is executed by the data analysis unit 64.

  By applying the sample to the blood cell analyzer and applying the RET-He value and the Delta-He value calculated by the data analysis unit 64 to the region map read from the memory of the data analysis unit 64, the combination of both values can be obtained. It is determined to which area on the area map it belongs (step S6). For example, if the calculated value is (Delta-He, RET-He) = (2 pg, 27 pg), this combination of values corresponds to the region A5, and the identification code A5 (here, the region) corresponding to the region A5 (The same code name as the name) is assigned to this combination of values, and is output from the output unit together with the values of RET-He, Delta-He and other items. In this embodiment, the value calculated by the data analysis unit 64 and the corresponding identification code are transmitted to the data processing unit 3 via the interface 65 and displayed on the display screen.

  FIG. 7 is an example of the analysis result screen 100 displayed on the display screen of the data processing unit 2. An attribute display area 101 for displaying a specimen or patient attribute is provided at the top of the screen 100. Specifically, the specimen number, patient name, gender, sex date, ward, doctor in charge, measurement date, Measurement time, comments, etc. are displayed. A measurement result display area for displaying the measurement result is provided below the attribute display area 101. Reference numeral 102 denotes a tab for switching display contents, and a plurality of tabs are prepared according to the main screen, the graph screen, and other items. FIG. 7 shows a state where the tab of research (RBC system) is selected. That is, the analysis result calculated in this embodiment is treated as a research item in this blood cell analyzer. A text display area for displaying numerical values and flags is provided in the left half of the measurement result display area, and a distribution chart display area for displaying a distribution chart is provided in the right half. In the measurement result display area, a display area 103 for displaying measurement results of measurement items such as RBC, HGB, HCT,..., HFR, RET-He, RBC-He, D-He (Delta-He), ..., a display area 105 for displaying research items such as NRBC% is provided. Below the research display item 105, a flag display area 104 for displaying flags relating to red blood cells and platelets is provided. Note that identification codes such as A5, A6, and A7 assigned to the combination of the calculation results are displayed in this area 104.

  In the present embodiment, six distribution maps are displayed in the distribution map display area, and 77 is a scattergram of a reticulocyte measurement sample in which the vertical axis indicates the forward scattered light intensity and the horizontal axis indicates the side fluorescence intensity. Is a scattergram displayed by changing the scale of the horizontal axis of the scattergram 77. 107 is a scattergram of a sample for measuring nucleated red blood cells with the vertical axis representing the forward scattered light intensity and the horizontal axis representing the side fluorescence intensity, and 108 is a scattergram displayed by changing the scale of the vertical axis of the scattergram 77. 78 is a histogram of red blood cells, and 79 is a histogram of platelets.

  This will be described from the viewpoint of using the output identification code for a treatment monitor. Here, IDA or ACD monitoring and EPO or iron therapy monitoring will be described. In the case of iron deficiency anemia, since it exhibits microglobules and hypopigmentation, it is generally located in region A5. Therefore, it is assumed that treatment (medication) is started from this situation. If the values of RET-He and Delta-He measured after the start of the treatment remain in the region A5, it indicates that the effect of the treatment is not seen, so that the review or change of the treatment is necessary. If the region A5 is shifted to the region A4, it indicates that anemia is further deteriorated, so that it is necessary to review the treatment. If the region A5 is shifted to the region A6, it is suggested that the treatment is partially successful, and it is necessary to continue or review the treatment. Furthermore, if the region A6 is shifted to the region A2, a therapeutic effect is clearly recognized, and it is expected that the region A1 is finally transferred.

  Next, a treatment monitor for prescription of vitamin B12 or folic acid will be described. Giant erythroblastic anemia is considered to be macrocytic / hyperchromic anemia and is usually located in region A7 or A8. If the values of RET-He and Delta-He measured after the start of treatment remain in the regions A7 and A8, the therapeutic effect will not be seen. If this shifts from the region A7 or A8 to the region A3, the therapeutic effect is recognized. If this state continues, it is expected that the region A1 will be entered.

  An example of outputting other state identification information (clinical test support information) will be described. FIG. 8 is a flowchart thereof. In this example, after the measurement result including the data on hemoglobin in the blood cells is obtained by the blood cell analyzer, the combination of RET-He and Delta-He is plotted on the region map of the correlation diagram shown in FIG. It is intended to provide state identification information.

  First, the display screen of the data processing unit 3 and the keyboard are operated to select a graph display menu for anemia monitoring and activate the menu (step S11). Next, one or more specimens to be displayed in a graph are selected from the stored specimen list (step S12) and confirmed (step S13). The stored specimen is stored in the hard disk of the data processing unit 3, and the blood analysis result of each patient and the patient attribute information are stored in association with each other. The selected sample is processed for graph display by the data processing unit 3 (step S14), and a correlation diagram divided into regions is displayed on the display screen of the data processing unit 3 (step S15).

  FIG. 9 is a correlation diagram in which the course of treatment with erythropoietin administered to a patient with iron deficiency anemia is plotted. In this display screen, four areas A, B, C, and D are shown. These correspond to A1, A3, A4, and A5 in FIG. The unit is different from that in FIG. By multiplying RET-He in pg by 0.06206, it can be converted to RET-He in fmol. The plot of C area | region has shown the data of RET-He and D-He (Delta-He) measured on November 25, 2005. The upper left plot in the D region shows RET-He and D-He data measured on December 8, 2005, and the A plot shows the RET-He and D measured on December 22, 2005. -He data are shown respectively. From the transition of this plot, it is clear that this patient is moving from a functional iron deficiency state to a normal state.

  By outputting a correlation diagram in which the data of RET-He and Delta-He are plotted together with the areas thus divided, the severity of the anemia and the therapeutic effect can be clearly identified and grasped visually.

  In the above embodiment, the scattered red blood cells and the reticulocytes are classified using the scattered light information and the fluorescence information as the optical information. However, the present invention is not limited to this. The absorption information may be used to classify mature erythrocytes and reticulocytes.

In the blood cell analyzer of the above embodiment, an analysis program for acquiring state identification information (clinical test support information) is installed in the data analysis unit 64 in advance, but the blood cell analyzer is provided in advance. The present invention is not limited to this, and the analysis program can be provided as a computer program, and the computer program can be installed in a conventional blood cell analyzer so that the functions according to the present invention are exhibited.

1 is an overall block diagram of a blood cell analyzer according to an embodiment of the present invention. It is a block diagram of the principal part of a fluid mechanism part. It is a perspective view of an optical detection part. It is a flowchart of the analysis process for providing state identification information. It is a distribution map containing mature erythrocytes and reticulocytes to be analyzed. It is the correlation diagram which displayed the area | region corresponding to an identification code. It is a figure which shows the display screen which displays an analysis result. It is a flowchart of the other analysis processing for providing state identification information. It is the correlation diagram which plotted analysis data in time series.

Explanation of symbols

2 Blood Cell Analyzer Measuring Unit 3 Blood Cell Analyzer Data Processing Unit 4 Detection Unit 7 Display / Operation Unit 8 Device Mechanism Unit 64 Data Analysis Unit 81 Fluid Mechanism Unit 100 Data Processing Unit Display Screen 104 Flag Display Areas A1 to A9, A, B, C, D Classification area

Claims (8)

A detector that irradiates the blood sample with light to obtain optical information including at least scattered light information from each cell included in the blood sample;
Cell classification means for classifying red blood cells and reticulocytes among the cells based on the acquired optical information;
Scattered light information acquisition means for acquiring red blood cell scattered light information that is scattered light information about red blood cells and reticulocyte scattered light information that is scattered light information about reticulocytes,
Obtain the value equivalent to the amount of hemoglobin in red blood cells from the red blood cell scattered light information, obtain the value equivalent to the amount of hemoglobin in reticulocytes from the reticulocyte scattered light information, and calculate the value equivalent to the amount of hemoglobin in reticulocytes and the value equivalent to the amount of hemoglobin in red blood cells. A blood cell analyzer comprising: a hemoglobin amount equivalent value acquisition means for acquiring a difference (hemoglobin amount difference); and a support information acquisition means for acquiring clinical test support information based on a hemoglobin amount equivalent value in a reticulocyte and a hemoglobin amount difference. 2. The blood cell analyzer according to claim 1, further comprising an output means for outputting a hemoglobin amount equivalent value in reticulocytes, a difference in hemoglobin amount, and clinical test support information. A storage means for storing clinical test support information corresponding to a hemoglobin amount equivalent value in reticulocytes and a difference in hemoglobin amount is provided, and the support information acquisition means includes a hemoglobin amount equivalent value and hemoglobin in a reticulocyte obtained by analyzing a blood sample. The blood cell analyzer according to claim 1, wherein the corresponding clinical test support information is read from the storage means based on the quantity difference. A storage means for storing a correlation diagram in which a plurality of regions corresponding to clinical examination support information is set using a value corresponding to the amount of hemoglobin in the reticulocyte and a difference in the amount of hemoglobin as a parameter is provided, and the support information acquisition means is read from the storage means In the correlation diagram, data corresponding to the amount of hemoglobin in the reticulocyte and the difference in the amount of hemoglobin obtained by analyzing the blood sample are plotted as sample analysis information, and the output means outputs a correlation diagram in which the sample analysis information is plotted Item 3. The blood cell analyzer according to Item 2. Second support means for storing the correlation diagram plotted with the sample analysis information together with the sample attribute information is provided, and the support information acquisition means has the same sample attribute information as the sample attribute information of the correlation diagram stored in the second storage means. 5. The blood cell analysis according to claim 4, wherein when the blood sample is analyzed, the obtained data on the hemoglobin amount equivalent value in the reticulocyte and the difference in hemoglobin amount are plotted as the second sample analysis information in the correlation diagram read from the second storage means. apparatus. 6. The blood cell analyzer according to claim 4, wherein the analysis date and time data are displayed on a correlation diagram together with a plot of data on the amount of hemoglobin in the reticulocyte and the difference in the amount of hemoglobin. The blood cell analysis according to any one of claims 1 to 6, wherein the red blood cell scattered light information is an average value of scattered light intensity of each red blood cell, and the reticulocyte scattered light information is an average value of scattered light intensity of each reticulocyte. apparatus. Irradiating the blood sample with light to obtain optical information including at least scattered light information from each cell contained in the blood sample;
Classifying red blood cells and reticulocytes out of the cells based on the obtained optical information;
Obtaining red blood cell scattered light information that is scattered light information about red blood cells and reticulocyte scattered light information that is scattered light information about reticulocytes,
Obtaining a hemoglobin amount equivalent value in red blood cells from red blood cell scattered light information, and obtaining a hemoglobin amount equivalent value in reticulocytes from reticulocyte scattered light information;
A step of obtaining a difference (hemoglobin amount difference) between a value corresponding to the amount of hemoglobin in erythrocytes and a value corresponding to a value of hemoglobin in reticulocytes, and a step of obtaining clinical test support information based on the value corresponding to the amount of hemoglobin in reticulocytes and the difference in the amount of hemoglobin A blood cell analysis method comprising:

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